﻿using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using eTMS.Controllers.ComponentsService;
using eTMS.Controllers;
using eTMS.Commons;
namespace eTMS.Systems.Forms
{
    public partial class FrmComponents : eTMS.Controls.BaseForm
    {
        public FrmComponents()
        {
            InitializeComponent();
        }
        #region Variables
        private ComponentsController controller = new ComponentsController();
        #endregion
        #region Screen Functions
        //Load All lable text
        private void LoadLanguage()
        {
            this.Text = ComponentsStringMapping.Components;
            this.labelFormTitle.Text = Constants.APP_ADMINISTRATION + " " + ComponentsStringMapping.Components;
            this.groupBoxDetail.Text = Constants.APP_DETAIL;
            this.groupBoxList.Text = Constants.APP_LIST;
            this.ColumnSTT.HeaderText = Constants.APP_INDEX;
            labelComponentName.Text = ComponentsStringMapping.ComponentName;
            ColumnComponentName.HeaderText = ComponentsStringMapping.ComponentName;
            labelSourceCode.Text = ComponentsStringMapping.SourceCode;
           }
        //Get entity selected from datagrid
        private ComponentsEntity GetObject()
        {
            ComponentsEntity o = controller.MapDataRowToObject(((DataRowView)gridData.SelectedRows[0].DataBoundItem).Row);
            return o;
        }
        //Get entites selected from datagrid
        private List<DataRow> GetSelectedDataRows()
        {
            List<DataRow> ls = new List<DataRow>();
            for (int i = 0; i < gridData.SelectedRows.Count; i++)
            {
                ls.Add(GetDataRow(gridData.SelectedRows[i].Index));
            }
            return ls;
        }
        //Get the selected data row in datagrid
        private DataRow GetSelectedDataRow()
        {
            DataRow row = GetDataRow(gridData.SelectedRows[0].Index);
            return row;
        }
        //Get the selected data row in datagrid
        private DataRow GetDataRow(int index)
        {
            DataRow row = ((DataRowView)gridData.Rows[index].DataBoundItem).Row;
            return row;
        }
        //Reset all textbox
        private void ClearScreen()
        {
            txtComponentName.Text = "";
            txtSourceCode.Text = "";
            errorProviderData.Clear();
        }
        //Lock-Unlock control in screen
        private void LockScreen(bool IsLocked)
        {
            ucCommand.LockControl(IsLocked);
            txtComponentName.ReadOnly = IsLocked;
            txtSourceCode.ReadOnly = IsLocked;
            //Coder implement here
            //CopyBinaryToScreen(o.Content);
            //End
        }
        //Copy data from control in screen to object
        private void CopyFromSreen(ComponentsEntity o)
        {
            o.ComponentName = Convert.ToString(txtComponentName.Text);
            o.SourceCode = Convert.ToString(txtSourceCode.Text);
            o.Content = new byte[0];
            //End
        }
        //Bind data from object to control in screen
        private void CopyToSreen(ComponentsEntity o)
        {
            if (!o.IsNullComponentName)
            {
                txtComponentName.Text = Convert.ToString(o.ComponentName);
            }
            if (!o.IsNullSourceCode)
            {
                txtSourceCode.Text = Convert.ToString(o.SourceCode);
            }
            
        }
        //Validate all data from control in screen before Save data
        protected bool ValidateScreen()
        {
            bool result = true;
            if (txtComponentName.Text.Trim() == "")
            {
                txtComponentName.Focus();
                errorProviderData.SetError(txtComponentName, Constants.MSS_ERROR_TEXT);
                result = false;
            }
            else
            {
                errorProviderData.SetError(txtComponentName, "");
            }
            if (!result)
            {
                ShowInfo(Constants.MSS_REQUIRE_FIELD);
            }
            if (result)
            {
                //Check if exists ComponentName				
                bool existsComponentName = controller.CheckExistsComponentName(txtComponentName.Text);
                bool editexists = false;
                if (Flag == ACTIONENUM.Edit)
                {
                    DataRow row = GetSelectedDataRow();
                    string newVal = txtComponentName.Text;
                    editexists = Convert.ToString(row["ComponentName"]) != Convert.ToString(newVal);
                }
                if (existsComponentName && ((Flag == ACTIONENUM.AddNew) || editexists))
                {
                    result = false;
                    errorProviderData.SetError(txtComponentName, Constants.MSS_ERROR_DATA_UNIQUE);
                    txtComponentName.Focus();
                    ShowInfo(Constants.MSS_ERROR_EXISTS_DATA);
                }
                else
                {
                    errorProviderData.SetError(txtComponentName, "");
                }
            }
            return result;
        }
        //Copy data from selected object to control in screen
        private void BindInfo()
        {
            if (gridData.SelectedRows.Count == 0) return;
            if (gridData.SelectedRows[0].Index < gridData.Rows.Count)
            {
                ComponentsEntity o = GetObject();
                CopyToSreen(o);
            }
        }
        #endregion
        #region Business
        //AddNew data to database
        private bool AddNewData()
        {
            bool rval = false;
            controller.ResetObject();
            CopyFromSreen(controller.ComponentsObject);
            rval = controller.AddNew();
            if (rval)
            {
                DataRow row = controller.Table.NewRow();
                row["STT"] = controller.Table.Rows.Count + 1;
                controller.MapObjectToDataRow(row);
                controller.Table.Rows.Add(row);
                gridData.DataSource = null;
                gridData.DataSource = controller.Table;
            }
            return rval;
        }
        //Update data to database
        private bool UpdateData()
        {
            DataRow row = GetSelectedDataRow();
            controller.LoadObject((Int32)row["Component_ID"]);
            CopyFromSreen(controller.ComponentsObject);
            bool rval = controller.Update();
            if (rval)
            {
                controller.MapObjectToDataRow(row);
                gridData.InvalidateRow(gridData.SelectedRows[0].Index);
            }
            return rval;
        }
        //Delete data from database
        private bool DeleteData()
        {
            List<DataRow> ls = GetSelectedDataRows();
            if (ls.Count == 0) return false;
            bool rval = true;
            try
            {
                gridData.ClearSelection();
                foreach (DataRow row in ls)
                {
                    if (controller.DeleteByID((Int32)row["Component_ID"]))
                    {
                        this.controller.Table.Rows.Remove(row);
                    }
                    else
                    {
                        rval = false;
                    }
                }
                this.controller.ResetTableIndex();
                gridData.Update();
            }
            catch
            {
                return false;
            }
            return true;
        }
        #endregion
        #region DataBinding
        //Bind data to datagrid
        private void LoadData()
        {
            gridData.AutoGenerateColumns = false;
            gridData.DataSource = controller.Table;
            gridData.AutoResizeColumns();
        }
        #endregion
        #region Windows Control EventHandlers
        private void FrmComponents_Load(object sender, EventArgs e)
        {
            LoadLanguage();
            LoadData();
            LockScreen(true);
        }
        private void gridData_RowEnter(object sender, DataGridViewCellEventArgs e)
        {
            BindInfo();
        }
        private void ucCommand_OnAddNew(object sender, EventArgs e)
        {
            ClearScreen();
            LockScreen(false);
            Flag = ACTIONENUM.AddNew;
            txtComponentName.Focus();
        }
        private void ucCommand_OnDelete(object sender, EventArgs e)
        {
            if (gridData.SelectedRows.Count == 0)
            {
                ShowInfo(Constants.MSS_CHOOSERECORD_REQUIRE);
                return;
            }
            if (!Confirm(Constants.MSS_CONFIRM_DELETE)) return;
            DeleteData();
            this.gridData.Focus();
        }
        private void ucCommand_OnEdit(object sender, EventArgs e)
        {
            if (gridData.SelectedRows.Count == 0)
            {
                ShowInfo(Constants.MSS_CHOOSERECORD_REQUIRE);
                return;
            }
            LockScreen(false);
            Flag = ACTIONENUM.Edit;
            txtComponentName.Focus();
        }
        private void ucCommand_OnSave(object sender, EventArgs e)
        {
            if (!ValidateScreen())
                return;
            if (Flag == ACTIONENUM.Edit)
            {
                if (UpdateData())
                {
                    ShowInfo(Constants.MSS_SAVE_SUCCESS);
                }
                else
                {
                    ShowWarning(Constants.MSS_SAVE_FAILE);
                }
                gridData.Focus();
            }
            else
            {
                if (AddNewData())
                {
                    ShowInfo(Constants.MSS_SAVE_SUCCESS);
                }
                else
                {
                    ShowWarning(Constants.MSS_SAVE_FAILE);
                }
            }
            LockScreen(true);
            Flag = ACTIONENUM.None;
        }
        private void ucCommand_OnSkip(object sender, EventArgs e)
        {
            LockScreen(true);
            if (Flag == ACTIONENUM.AddNew)
            {
                ClearScreen();
                ucCommand.SetFocusAddNew();
            }
            else if (Flag == ACTIONENUM.Edit)
            {
                BindInfo();
                this.gridData.Focus();
            }
            Flag = ACTIONENUM.None;
        }
        #endregion
    }
}
